Adjustable table

ABSTRACT

An adjustable table is composed of a tabletop, a foot frame and a telescopic tube. The tabletop has a combining plate at the bottom. The frame consists of a sleeve, a movable ring, plural support legs and a fixing ring. The movable ring is fitted around the sleeve while the fixing ring is secured on the lower end of the sleeve. The support legs are respectively and pivotally connected with the movable and the fixing toggle, able to be simultaneously expanded outward to stand stably on the ground. The telescopic tube has its upper end assembled with the tabletop and its lower end inserted in the sleeve, having a connecting plate on top for assembling with the combining plate of the tabletop. The telescopic tube is able to move up and down for adjusting height of the tabletop.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] This invention relates to an adjustable table, particularly toone able to be freely adjusted in height, assembled and disassembledwith quickness and collapsed conveniently for carrying about.

[0003] 2. Description of the Prior Art

[0004] A conventional table, as shown in FIG. 1, includes a tabletop 10and four table legs 11 combined together. The four table legs 11 arerespectively assembled with the bottom of the table top 10 by bolts 13,and the four table legs 11 are stabilized by support members 12, whichare respectively fixed with the four table legs 11 by bolts 13, not onlytroublesome in assembling and disassembling, but also impossible to becollapsed and carried about. Besides, the conventional table cannot beadjusted in height, inconvenient in use.

SUMMARY OF THE INVENTION

[0005] One objective of the invention is to offer a table able to beassembled and disassembled with quickness and convenient to be collapsedfor storing with less space.

[0006] A second objective of the invention is to offer a table able tobe conveniently carried about and suitable for use indoors and outdoorsas well.

[0007] A third objective of the invention is to offer a table able to befreely and stably adjusted in height.

[0008] The adjustable table in the present invention includes a tabletophaving a combining plate fixed at the bottom, and a foot frame assembledunder the tabletop. The foot frame is composed of a sleeve, a movablering, plural support legs and a fixing ring. The movable ring is fittedaround the sleeve, while the fixing ring is secured on the lower end ofthe sleeve. The support legs are respectively and pivotally connectedwith the movable and the fixing ring, able to be simultaneously expandedoutward to stand stably on the ground. A telescopic tube has its upperend assembled with the table top and its lower end inserted in thesleeve of the foot frame, having a connecting plate fixed on top to beassembled with the combining plate of the table top.

BRIEF DESCRIPTION OF DRAWINGS

[0009] This invention will be better understood by referring to theaccompanying drawings, wherein:

[0010]FIG. 1 is a perspective view of a conventional table;

[0011]FIG. 2 is an exploded perspective view of an adjustable table inthe present invention;

[0012]FIG. 3 is a cross-sectional view of the adjustable table in thepresent invention;

[0013]FIG. 4 is a cross-sectional view of the foot frame of theadjustable table in the present invention, illustrating the telescopictube inserted in the sleeve of the foot frame and able to move up anddown;

[0014]FIG. 5 is a cross-sectional view of the adjustable table havingits height adjusted by a telescopic tube in the present invention;

[0015]FIG. 6 is a perspective view of the telescopic tube and the footframe collapsed and hooked at the bottom of the table top in the presentinvention; and,

[0016]FIG. 7 is a side cross-sectional view of the adjustable tablestanding up sideward after the telescopic tube and the foot frame arecollapsed and hooked at its bottom in the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0017] A preferred embodiment of an adjustable table in the presentinvention, as shown in FIGS. 2, 3 and 4, includes a tabletop 2, a footframe 3 and a telescopic tube 4 as main components combined together.

[0018] The tabletop 2 has a combining plate 20 fixed at the bottom, andhaving two threaded holes 200 and at least one engage groove 201.

[0019] The foot frame 3 positioned under the tabletop 2 is composed of asleeve 30, a movable ring 31, a plurality of support legs 32 and afixing ring 33. The sleeve 30 has its upper inner wall bored with anannular groove 300, with an adjusting bolt 34 screwed through the sleevewall above the annular groove 300. The movable ring 31 is fitted aroundthe sleeve 30, able to move up and down along the sleeve 30 and havingan adjusting bolt 35 provided at one side, while the fixing ring 33 issecured on the lower end of the sleeve 30. The support legs 32 havetheir upper ends pivotally connected with the movable toggle 31, pluralpivotal stretchers 320 are respectively and pivotally connected with thesupport legs 32 and the fixing toggle 33. Besides, at least one hook 36is provided at a proper location of the foot frame 3 to be hooked withthe engage groove 201 of the combining plate 20 under the tabletop 2.Thus, the movable ring 31 is able to slide up and down along the sleeve30 and actuate the support legs 32 to expand outward like an umbrellaand then is firmly positioned on the sleeve 30 by the adjusting bolt 35,enabling the support legs 32 to be expanded to a preset angle andpositioned. Further, the pivotal stretchers 320 respectively andpivotally connected with the support legs 32 and the fixing ring 33makes the support legs 32 stand stably on the ground and able to leanagainst the sleeve 30 after collapsed.

[0020] The telescopic tube 4 has its upper end assembled with thetabletop 2 and its lower end inserted in the sleeve 30 of the foot frame3. The telescopic tube 4 has a connecting plate 40 formed on top and tobe combined with the combining plate 20 of the tabletop 2. Theconnecting plate 40 of the telescopic tube 4 is bored with two threadedholes 41 corresponding to the two threaded holes 200 of the combiningplate 20, with bolts 44 respectively screwed through the threaded holes41 and 200 to combine the telescopic tube 4 with the table top 2together. Further, the telescopic tube 4 has its bottom end fixed with abumper 42 and inserted in the sleeve 30 of the foot frame 3 and isfurther provided at a lower proper position with an elastic stopper 43,which is received inside the telescopic tube 4 and has its opposite endsprotruding out of the outer wall of the telescopic tube 4. The elasticstopper 43 can be engaged in the annular groove 300 in the inner wall ofthe sleeve 30 to prevent the telescopic tube 4 from slipping out of thesleeve 30 due to applying force improperly.

[0021] In assembling and using, as shown in FIGS. 2-5, the telescopictube 4 has its lower end with the bumper 42 inserted in the sleeve 30 ofthe foot frame 3, and its connecting plate 40 combined together with thecombining plate 20 of the table top 2 by the bolts 44 respectivelyscrewed through the threaded holes 41 and 200. The foot frame 3 is ableto move up and down along the sleeve 30 by means of the movable ring 31,therefore when the movable ring 31 is moved downward, it will actuatethe pivotal support legs 32 to expand outward simultaneously in anumbrella shape. When the support legs 32 expand to a proper angle andthe movable ring 31 is firmly screwed on the sleeve 30, they can standstably on the ground.

[0022] To move the tabletop 2 to a comparatively low position, simplypress down the tabletop 2 to let the telescopic tube 4 move downwardslowly in the sleeve 30 with the help of its bumper 42. When thetabletop 2 together with the telescopic tube 4 is moved downward to asuitable height, it can be fixed in position by screwing the adjustingbolt 34 inward to let it tightly press against the telescopic tube 4. Onthe contrary, to move the table top 2 upward, only unscrew the adjustingbolt 34 of the sleeve 30 and move the table top 2 upward together withthe telescopic tube 4, and when the table top 2 is moved to a presetheight, screw tightly the adjusting bolt 34 to position the table top 2at a suitable height. Besides, the elastic stopper 43 of the telescopictube 4 can be firmly engaged in the annular groove 300 in the inner wallof the sleeve 30 to prevent the telescopic tube 4 from slipping out ofthe sleeve 30 due to applying a force improperly.

[0023] In addition, the tabletop 2 can be turned around for 360 degreesby unscrewing the adjusting bolt 34 on the sleeve 30 to enable thetelescopic tube 4 to rotate, facilitating articles taken off thetabletop 2.

[0024] In collapsing of the adjustable table, as shown in FIGS. 6 and 7,the bolts 44 are first unscrewed to let the telescopic tube 4 togetherwith the foot frame 3 separated from the table top 2, and then thetelescopic tube 4 is pressed downward and entirely received in thesleeve 30. Next, the adjusting bolt 35 is unscrewed to let the movablering 31 moved upward, and synchronously the support legs 32 togetherwith their pivotal stretchers 320 are collapsed to lean against thesleeve 30. Lastly, the collapsed foot frame 3 together with thetelescopic tube 4 is stably positioned at the bottom of the table top 2by the hook 36 of the foot frame 3, which stably hooks the engage groove201 at the bottom of the table top 2, thus enabling the table top 2 tostand up sideward to economize storing space and let the adjustabletable carried about conveniently.

[0025] As can be understood from the above description, this inventionhas the following advantages.

[0026] 1. It can be assembled, disassembled easily and collapsedconveniently.

[0027] 2. It can be adjusted to a suitable height to match with theheight of a chair or a user, and it also can be turned around for 360degrees for facilitating taking articles from the tabletop.

[0028] 3. When the tabletop is pressed to move downward together withthe telescopic tube, the bumper can slow down the telescopic tube,letting the tabletop screwed in position conveniently when it is moveddownward to a suitable height.

[0029] 4. The sleeve is bored with an annular groove in the upper innerwall for the elastic stopper of the telescopic tube to be engagedtherein to prevent the telescopic tube from slipping out of the sleevedue to applying a force improperly.

[0030] 5. It can be collapsed with quickness to diminish its size andeconomize storing space.

[0031] 6. It can be used indoors or outdoors, and it is also suitablefor use in the open air, regardless of the topography.

[0032] 7. The support leg of the foot frame can be simultaneouslyexpanded to stand stably on the ground, and the telescopic tube can bequickly assembled with the tabletop, practical and convenient in use.

[0033] While the preferred embodiment of the invention has beendescribed above, it will be recognized and understood that variousmodifications may be made therein and the appended claims are intendedto cover all such modifications that may fall within the spirit andscope of the invention.

What is claimed is:
 1. An adjustable table comprising: a tabletop provided with a combining plate at the bottom; a foot frame positioned under said table top, said foot frame composed of a sleeve, a movable ring, a plurality of support legs and a fixing ring, said movable ring fitted around said sleeve, said fixing ring secured on the lower end of said sleeve, said support legs respectively and pivotally connected with said movable ring and said fixing ring, said support legs able to be simultaneously expanded outward to stand stably on the ground; a telescopic tube having its upper end connected with said table top and its lower end inserted in said sleeve, said telescopic tube fixed with a connecting plate on top, said connecting plate assembled with said combining plate of said table top; and, said telescopic tube able to move up and down in said sleeve and adjust said table top to a suitable height, said adjustable table able to be assembled and disassembled fast and convenient to be collapsed.
 2. The adjustable table as claimed in claim 1, wherein said combining plate of said tabletop is provided with at least one engage groove.
 3. The adjustable table as claimed in claim 1, wherein said foot frame is provided with at least one hook at a proper position to hook at said engage groove of said combining plate of said table top.
 4. The adjustable table as claimed in claim 1, wherein at least one adjusting bolt is provided at the upper side of said sleeve of said foot frame for pushing against and securing said telescopic tube in an adjusted position.
 5. The adjustable table as claimed in claim 1, wherein an adjusting bolt is provided on one side of said movable ring for screwing said movable ring in position and permitting said support legs to be expanded outward to stand stably on the ground.
 6. The adjustable table as claimed in claim 1, wherein said telescopic tube is provided with a bumper at the bottom for slowing down said telescopic tube moving up and down in said sleeve so as to adjust said table top safely and stably.
 7. The adjustable table as claimed in claim 1, wherein said sleeve is bored an annular groove in the upper inner wall, and said telescopic tube is provided with an elastic stopper at a lower proper location, and said elastic stopper can be engaged in said annular groove to prevent said telescopic tube from slipping out of said sleeve due to applying a force improperly. 